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Pipeline flexible foamed plastic pasting method and pipeline

A flexible foam and pipe technology, applied in chemical instruments and methods, material gluing, synthetic resin layered products, etc., can solve problems such as inability to achieve rapid bonding, and achieve low curing temperature, short time, and good construction technology. Effect

Inactive Publication Date: 2015-01-14
SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a method for pasting soft foam plastics for pipes and pipes to solve the technical problem in the prior art that pasting soft foam plastics on the low-temperature pipes of a new generation of launch vehicles cannot achieve rapid pasting in a low-temperature environment

Method used

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  • Pipeline flexible foamed plastic pasting method and pipeline
  • Pipeline flexible foamed plastic pasting method and pipeline
  • Pipeline flexible foamed plastic pasting method and pipeline

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Embodiment Construction

[0026] In view of the fact that China's new generation of launch vehicles uses liquid oxygen / kerosene low-temperature fuel, it is necessary to use foam plastics for thermal insulation of fuel storage tanks and low-temperature pipelines. However, existing two-component and one-component polyurethane adhesives have the technical problem of being unable to quickly paste foam plastics on low-temperature pipes because of their long curing cycle. Therefore, the present invention combines the development of ultra-low temperature-resistant pressure-sensitive adhesives, uses ultra-low-temperature-resistant pressure-sensitive adhesives in the quick pasting of soft foam plastics for low-temperature pipelines of launch vehicles, and proposes that pressure-sensitive adhesives can be bonded by hand pressure to achieve Paste quickly.

[0027] In order to make the purpose and features of the present invention more comprehensible, the specific implementation manners of the present invention wi...

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Abstract

The invention discloses a pipeline flexible foamed plastic pasting method and a pipeline. The pipeline flexible foamed plastic pasting method comprises the following steps: making a precast flexible foamed plastic block with an ultralow temperature resistant pressure-sensitive adhesive; making a pipeline with the ultralow temperature resistant pressure-sensitive adhesive; and pasting the precast flexible foamed plastic block to a corresponding position of the pipeline, and compacting. The pipeline flexible foamed plastic pasting method and the pipeline satisfy requirements of onsite construction, instant use after instant coating, construction of the foamed plastic pasting at -20-50DEG C, and ultralow temperature resistance of new generation carrier rocket low-temperature pipeline pasting flexible foamed plastics.

Description

[0001] technical field [0002] The invention relates to the technical field of low-temperature pipeline manufacturing, and in particular to a method for pasting soft foam plastics for pipelines and pipelines. [0003] Background technique [0004] China's new generation of launch vehicles uses liquid oxygen / kerosene low-temperature fuel. In order to reduce the evaporation of low-temperature fuel and ensure that the temperature of liquid oxygen meets the normal operation requirements of the engine during the entire launch and flight, the fuel storage tank and low-temperature pipeline must be insulated with foam plastic. The flexible foam plastic of the low-temperature pipeline part needs to be pasted after the pipeline system is installed and leak tested, and it should be constructed on-site at the launch base. [0005] Adhesives suitable for ultra-low temperatures mainly include polyurethane and modified epoxy adhesives, and polyurethane adhesives have the best performanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/10B32B37/12B32B27/06B32B1/08B32B7/10
CPCF16B11/006
Inventor 南博华于淼何腾锋赵箫尤登飞连爱珍方岩
Owner SHANGHAI AEROSPACE EQUIP MFG GENERAL FACTORY
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